drm/virtgpu: remove redundant assignments to width and height

Variables width and height are being assigned values that are never
read. The assignments are redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200701134154.549112-1-colin.king@canonical.comSigned-off-by: NGerd Hoffmann <kraxel@redhat.com>

drivers/gpu/drm/virtio/virtgpu_display.c

@@ -165,8 +165,6 @@ static int virtio_gpu_conn_get_modes(struct drm_connector *connector)
 	count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
 
 	if (width == 0 || height == 0) {
-		width = XRES_DEF;
-		height = YRES_DEF;
 		drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
 	} else {
 		DRM_DEBUG("add mode: %dx%d\n", width, height);